JE9PEL QB50 CubeSat Spreadsheet

Planet Lab Dove CubeSats leaving the Nanoracks Deployer on February 11, 2014

Planet Lab Dove CubeSats leaving the ISS Nanoracks Deployer on February 11, 2014

The QB50 constellation of  fifty CubeSats should be shipped to the International Space Station (ISS) in December 2016 for subsequent deployment.

QB50p1 and QB50p2 Precursor 2U CubeSats - Image Credit ISIS

QB50p1 and QB50p2 Precursor 2U CubeSats – Image Credit ISIS

The CubeSats are planned to be deployed from the ISS using the Japanese Experiment Module (JEM) and the Nanoracks CubeSat Deployers.

Eight NanoRacks deployers are installed on the Multi-Purpose Experiment Platform (MPEP). Each deployer has a capacity of 6U and so can hold up to six 1U, three 2U or two 3U CubeSats. They are carried by Japanese Experiment Module-Remote Manipulator System (JEM-RMS).

Mineo Wakita JE9PEL has made available a spreadsheet showing the 50 satellites and their frequencies. A copy can be downloaded from the JE9PEL site.

QB50 project https://www.qb50.eu/

QB50 CubeSats to be deployed from ISS
https://amsat-uk.org/2015/09/08/qb50-cubesats-to-be-deployed-from-iss/

Launch of QB50 precursor CubeSats QB50p1 (EO-79) and QB50p2 (EO-80)
https://amsat-uk.org/2014/06/19/successful-launch-of-amateur-radio-satellite-payloads/

January 2014 original QB50 CubeSat launch contract signed
https://amsat-uk.org/2014/01/28/qb50-cubesat-launch-contract-signed/

Mineo Wakita JE9PEL satellite frequency list http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm

QB50 CubeSats to be deployed from ISS

Planet Lab Dove CubeSats leaving the Nanoracks Deployer on February 11, 2014

Planet Lab Dove CubeSats leaving the ISS Nanoracks Deployer on February 11, 2014

It has been announced that the fifty CubeSat QB50 constellation should be shipped to the International Space Station (ISS) in July 2016 for subsequent deployment. It had been planned for them to be launched by Alcantara Cyclone Space, a joint venture between the governments of Ukraine and Brazil, but that option is not longer available.

QB50p1 and QB50p2 Precursor 2U CubeSats - Image Credit ISIS

QB50p1 and QB50p2 Precursor 2U CubeSats – Image Credit ISIS

The AlbertaSat website reports on the 9th QB50 Workshop, held September 8, 2015 in Liège, Belgium. The CubeSats are now planned to be deployed from the ISS using the Japanese Experiment Module (JEM) and the Nanoracks CubeSat Deployers.

Eight NanoRacks deployers are installed on the Multi-Purpose Experiment Platform (MPEP). Each deployer has a capacity of 6U and so can hold up to six 1U, three 2U or two 3U CubeSats. They are carried by Japanese Experiment Module-Remote Manipulator System (JEM-RMS).

AlbertaSat provide an update on the QB50 precursor CubeSats P1/P2 which were launched in 2014. The first payload is working, and while it has been resetting, no damage appears to have occurred. It is possible that the second payload is damaged, but it is still functioning.

Representatives from QB50 also took the time to clearly define their goals and specify the details of the project. The project aims to probe probe thermosphere with about 40 sensors which study atmospheric science. These sensors include the Langmuir Probes that will be on Ex Alta-1. 40 CubeSats will be fitted with one of these sensors. The other 10 CubeSats will have in-orbit demonstrations.

QB50 project https://www.qb50.eu/

Launch of QB50 precursor CubeSats QB50p1 (EO-79) and QB50p2 (EO-80)
https://amsat-uk.org/2014/06/19/successful-launch-of-amateur-radio-satellite-payloads/

January 2014 original QB50 CubeSat launch contract signed
https://amsat-uk.org/2014/01/28/qb50-cubesat-launch-contract-signed/

AlbertaSat
http://albertasat.ca/
https://www.facebook.com/AlbertaSa

Activation of linear transponder on EO-79

QB50p1 and QB50p2 - Image Credit ISIS

QB50p1 and QB50p2 – Image Credit ISIS

The AMSAT-NL transponder on EO-79 is being activated to support the International Lighthouse and Lightship Weekend (ILLW).

On the AMSAT Bulletin Board Wouter PA3WEG posted:

We apologize for the short notice, this opportunity came along very last minute, and again we took it.

QB50p1 (EO-79) carries the FUNcube-3 400 mW inverting linear 435/145 MHz SSB/CW transponder provided by AMSAT-NL with support from AMSAT-UK.

• 435.035-435.065 MHz LSB Uplink
• 145.935-145.965 MHz USB Downlink

TLEs are NORAD # 40025, COSPAR designator 2014-033-R

Remember that the FUNcube family of transponders do not need much power to work them.

I will be operating at Scheveningen Lighthouse PA25SCH, NL0025

Thanks to the Von Karman Institute and Innovative Solution In Space for the opportunity to use the transponder.

Have FUN over the weekend!

Wouter PA3WEG
AMSAT-NL

International Lighthouse and Lightship Weekend (ILLW)
http://www.illw.net/
https://www.facebook.com/ILLWeekend

QB50p2 FM Transponder Tested

QB50p1 and QB50p2 - Image Credit ISIS

QB50p1 and QB50p2 – Image Credit ISIS

AMSAT-Francophone report that the FM transponder on QB50p2 (EO-80) has been tested. A Google English translation of the post on their website reads:

On June 19, 2014, two 2U CubeSats QB50p1 and QB50p2 were launched as part of the QB50 precursor program into a polar orbit at an altitude of 680 km.

The satellite QB50p2 (object 40032) is equipped with a secondary FM transponder payload developed by AMSAT-F.

On Tuesday, June 16, 2015 almost 1 year after launch the AMSAT-F FM transponder on QB50p2 was activated by the main control station in The Netherlands for the duration of an orbit. At the Polytechnique in Palaiseau, we were able to receive telemetry in CW and put into action the FM transponder with an output of 1.5W.

A very strong signal was received at Palaiseau and by F6HCC in Brittany. The transponder was turned off at the end of the orbit.

In a few weeks, the transponder should be activated permanently. The signal is very strong, we will probably use a lower power level of 500 mW or 1 watt. We will inform you later.

QB50p1 (EO-79 / FUNcube-3) is equipped with a linear transponder for SSB and CW. The first tests were successfully completed in April and its transponder should also be enabled full-time in a few weeks.

Gérard – F6FAO

QB50 Amateur Radio Information https://www.qb50.eu/index.php/precursor-amateur-radio-operator

AMSAT-Francophone http://tinyurl.com/AMSAT-Francophone

The IARU Satellite Frequency Coordination Panel Status pages list these frequencies for the two satellites:

QB50p1 (FUNcube-3) has a VHF 9600 bps BPSK telemetry downlink plus a linear U/V transponder for SSB/CW communications similar to that already flying on FUNcube-1 with an output of 400 mW.
• 145.815 MHz 9600 bps BPSK telemetry beacon
• Inverting SSB/CW linear transponder 400 mW PEP
– 435.035 – 435.065 MHz Uplink LSB
– 145.965 – 145.935 MHz Downlink USB

QB50p2 has  a VHF 9600 bps BPSK telemetry downlink plus a separate RF payload from AMSAT-Francophone which will comprise of a FM voice transponder with UHF uplink and VHF downlink. It can also transmit FX25 telemetry at 9600 bps.
• 145.880 MHz 9600 bps BPSK telemetry beacon
• 145.840 MHz 9600 bps FSK FX25

To use the FM voice transponder Paul Stoetzer N8HM suggests programming these frequencies into your rig’s memories:

EO-80 AOS - TX 435.070 MHz 210.7 Hz CTCSS, RX 145.840 MHz
EO-80 2   - TX 435.075 MHz 210.7 Hz CTCSS, RX 145.840 MHz
EO-80 TCA - TX 435.080 MHz 210.7 Hz CTCSS, RX 145.840 MHz
EO-80 4   - TX 435.085 MHz 210.7 Hz CTCSS, RX 145.840 MHz
EO-80 LOS - TX 435.090 MHz 210.7 Hz CTCSS, RX 145.840 MHz

AOS = Aquisition Of Signal. TCA = Time of Closest Approach. LOS = Loss Of Signal

OSCAR Numbers for QB50p1 and QB50p2 CubeSats
https://amsat-uk.org/2014/07/02/oscar-numbers-for-qb50p1-and-qb50p2-cubesats/

EO-79 (FUNcube-3) Transponder Test May 4

QB50p1 and QB50p2 - Image Credit ISIS

QB50p1 and QB50p2 – Image Credit ISIS

On Monday, May 4 at around 0830 UT it is intended to activate for one orbit the AMSAT-NL FUNcube-3 transponder on QB50p1 / EO-79.

TLEs are in the normal repositories, COSPAR 2014-033-R, Object# 40025. Real-time tracking at http://www.n2yo.com/satellite/?s=40025 (Click All Passes on Predictions)

We would like people to try the following frequencies if possible:
DOWNLINK: 145.960 MHz USB
UPLINK: Tune to match downlink +/- 435.065 MHz LSB
The transponder is linear inverting, nominally 30 kHz wide, and approximately 500 mW output.

If you find the transponder busy on those frequencies, feel free to move around and use the entire transponder passband.

AMSAT-UK FUNcube Mission Patch Rev4 20100609

AMSAT-UK FUNcube Mission Patch

The passband seems to have a “dip” in the middle which is bigger than expected, but we do welcome feedback about the usability. Also, please limit your uplink power, as it looks like this transponder is as sensitive as FUNcube-1. The spacecraft antenna is a monopole, so we would also be interested in signal fading reports.

The commissioning of the transponder done to date is very limited, three activations for 5, 10 and 8 minutes respectively. So your reports are greatly appreciated.

We do understand this is a very short notice, but hope that some of you will be able to participate. This was a take-it-or-leave-it opportunity offered by the ISIS engineers for our consideration, and we are again very grateful to ISIS and VKI for giving us this opportunity.

Please report contacts and signal reports to pa3weg@amsat.org

Wouter PA3WEG
FUNcube Team

QB50p1 EO-79 FUNcube-3 Transponder - Credit Mike Rupprecht DK3WN

QB50p1 EO-79 FUNcube-3 Transponder – Credit Mike Rupprecht DK3WN

OGMS-SA CubeSat to provide FM transponder

OGMS-SA CubeSat - Paris-Est Creteil University

OGMS-SA CubeSat – Paris-Est Creteil University

OGMS-SA is a 3U CubeSat being developed by students at the Paris-Est Creteil University as part of the QB50 constellation.

The purposes of this CubeSat include upper atmosphere science; radio communication experiments; technology demonstrator; education, training and outreach.

Additionally it will provide an FM voice transponder for amateur use.

Planning to use VHF uplink and UHF downlink with 9k6 FX25 GMSK modulation. A downlink of 437.545 MHz has been coordinated.

OGMS-SA CubeSat http://www.esep.pro/-CubeSat-OGMS-SA-En-construction-.html

Source IARU Satellite Frequency Coordination http://www.amsat.org.uk/iaru

QB50 CubeSat Launch Contract Signed
https://amsat-uk.org/2014/01/28/qb50-cubesat-launch-contract-signed/